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WASHINGTON, DC - MARCH 3: An image is displayed on a TV screen of Army Gen. Lloyd Austin, commander of the U.S. Central Command testifying at the House Armed Services Full Committee hearing on "The President's Proposed Authorization for Use of Military Force Against ISIL and U.S. Policy, Strategy, and Posture in the Greater Middle East" in the Rayburn House Office Building on Capitol Hill on March 3, 2015 in Washington, D.C. President Obama is asking Congress for approval on his war against the Islamic State. (Photo by Gabriella Demczuk/Getty Images)